include<tools/util.scad>
$fn=100;
translate([5,3,0])d_2_circle_slot(radius=5,height=5,width=10);
translate([30,1,0])cube([60,17,2.5]);
translate([5,-2,0])cube([25,20,5]);
translate([23,-22,0])cube([7,20,5]);
translate([0,-22,0])cube([23,7,5]);
translate([0,-15,0])cube([5,8,5]);